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Theoretical explanation of enhanced low dose rate sensitivity in erbium-doped optical fibers

Olivier Gilard, Jérémie Thomas, Laurent Troussellier, Mikhael Myara, Philippe Signoret, Ekaterina Burov, and Michel Sotom

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Abstract

A new theoretical framework is proposed to explain the dose and dose-rate dependence of radiation-induced absorption in optical fibers. A first-order dispersive kinetics model is used to simulate the growth of the density of color centers during an irradiation. This model succeeds in explaining the enhanced low dose rate sensitivity observed in certain kinds of erbium-doped optical fiber and provides some insight into the physical reasons behind this sensitivity.

©2012 Optical Society of America

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